5.25" Coaxial

The Polk DB+ Marine Certified Series was designed for big sound and optimized fit for just about every vehicle & application.

Everything you love about Polk's Dynamic Balance technology-that rich, clean, full-range sound is built into this marine-tough, yet ruggedly sophisticated new series. And with its universal fit, it can be installed in any vehicle: Automobiles, motorcycles, boats, ATVs - you name it.

It offers a range of eight sizes in total: six different coaxials from the 4" to the 6" x 9" and also includes two component systems.

The DB Plus Speaker Series are Marine Certified to push the limits of durability, so you can take them anywhere. The speakers feature an IP65 waterproof rating and are tested for salt-fog, UV and humidity.